【摘要】 文中叙述了水采技术近几年来取得的新进展及其对难采煤层的适应性 ;介绍了一些开采难采煤层的矿井改建成水采矿井 (采区 )后所取得的较好效益和技术经济指标 ;指出一种采煤方法除了考虑其与该地区地质情况、煤层条件等相适应与否外 ,还得考虑其经济效益问题 ,或者说其经济效益的好坏才是决定是否采用某种采煤方法的关键所在。更多还原

【Abstract】 The paper presents an overview of the new de- velopments in hydromining technology over the re- cent years and its adaptability for working hard- to - mine seams.It is reported that a number of con- ventional mines working this kind of seams have switched to hydromines( districts) ,and improved techno- economic results have been obtained.The author points out that,apart from the consideration of geological and seam conditions,the decisive factor in controlling the success of hydromining technology is the economic results that can be envisaged.更多还原